Module Damage From Incorrect AFIT Usage On Vehicles With Direct Fuel Injection (PIP5569B)
WARNING: This page is about the CT6 Base, 2.0L Eng VIN X, which is a different variant/trim than selected.
Publication date: 2024-05-10Reference number: PIP5569B
Supersedes refnos: PIP5569, PIP5569A
MODULE DAMAGE FROM INCORRECT AFIT USAGE ON VEHICLES WITH DIRECT FUEL INJECTION
TECHNICAL SERVICE BULLETIN
Reference Number(s): PIP5569B, Date of Issue:
May 10, 2024
SERVICE INFORMATION
| Brand: | Model: | Model Year: | VIN: | Engine: | Transmission: | ||
|---|---|---|---|---|---|---|---|
| from | to | from | to | ||||
| Buick | Allure (Canada only) | 2010 | All | All | 2.4 LAF, 3.0 LF1 3.6 LLT | All | |
| Buick | Cascada | 2016-2019 | All | All | 1.6 LWC | All | |
| Buick | Enclave | 2009-2024 | All | All | 3.6 LFY, 3.6 LLT | All | |
| Buick | Encore | 2016-2024 | All | All | 1.2 LIH, 1.3 L3T,1.4 LE2 | All | |
| Buick | Envision | 2016-2024 | All | All | 2.0 LSY, 2.0 LTG, 2.5 LCV | All | |
| Buick | Envista | 2024 | All | All | 1.2 LIH | All | |
| Buick | LaCrosse | 2010-2019 | All | All | 2.4 LAF, 2.4 LUK, 2.5 LHN, 3.0 LF1, 3.6 LFX, 3.6 LGX, 3.6 LLT | All | |
| Buick | Regal | 2011-2020 | All | All | 2.0 LHU, 2.0 LTG, 2.4 LAF, 2.4 LEA, 2.4 LUK, 3.6 LGX | All | |
| Buick | Verano | 2012-2017 | All | All | 2.0 LHU, 2.4 LEA | All | |
| Cadillac | ATS, ATS-V | 2013-2019 | All | All | 2.0 LTG, 2.5 LCV, 3.6 LFX, 3.6 LF4 3.6 LGX | All | |
| Cadillac | CT4 | 2020-2024 | All | All | 2.0 LSY, 2.7 L3B, 3.6 LF4 | All | |
| Cadillac | CT5 | 2020-2024 | All | All | 2.0 LSY, 3.6 LGY, 6.2 LT4 | All | |
| Cadillac | CT6 | 2017-2020 | All | All | 2.0 LSY, 3.6 LGW, 3.6 LGX, 4.2L LTA | All | |
| Cadillac | CTS, CTS-V | 2008-2019 | All | All | 2.0 LTG, 3.0 LF1, 3.6 LF3, 3.6 LFX, 3.6 LLT 6.2 LT4 | All | |
| Cadillac | Escalade | 2015-2024 | All | All | 6.2 L86, 6.2L L87 | All | |
| Cadillac | SRX | 2008-2016 | All | All | 2.8 LAU, 3.0 LF1, 3.6 LFX | All | |
| Cadillac | STS | 2008-2011 | All | All | 3.6 LLT | All | |
| Cadillac | XT4 | 2019-2024 | All | All | 2.0 LSY | All | |
| Cadillac | XT5 | 2017-2024 | All | All | 2.0 LSY, 3.6 LF3, 3.6 LFX, 3.6 LGX | All | |
| Cadillac | XT6 | 2020-2024 | All | All | 2.0 LSY, 3.6 LGX | All | |
| Cadillac | XTS | 2013-2017 | All | All | 3.6 LF3, 3.6 LFX | All | |
| Chevrolet | Camaro | 2010-2024 | All | All | 2.0 LTG, 3.6 LFX, 3.6 LLT, 3.6 LGX, 6.2 LT1, 6.2 LT4 | All | |
| Chevrolet | Caprice PPV | 2012-2017 | All | All | 3.6 LFX | All | |
| Chevrolet | Captiva Sport | 2012-2014 | All | All | 2.4 LEA, 3.0 LFW | All | |
| Chevrolet | Cobalt | 2008-2010 | All | All | 2.0 LNF | All | |
| Chevrolet | Colorado | 2015-2024 | All | All | 2.5 LCV, 2.7 L2R, 2.7 L3B, 3.6 LFX 3.6 LGZ | All | |
| Chevrolet | Corvette | 2014-2019 | All | All | 6.2 LT1, 6.2 LT4 | All | |
| Chevrolet | Cruze | 2016-2019 | All | All | 1.4 LE2 | All | |
| Chevrolet | Equinox | 2010-2024 | All | All | 1.5 LSD,1.5 LYX, 2.0 LTG, 2.4 LAF, 2.4 LEA, 3.0 LFW, 3.6 LFX | All | |
| Chevrolet | Express | 2018-2024 | All | All | 4.3 LV1, 6.6L L8T | All | |
| Chevrolet | HHR | 2008-2010 | All | All | 2.0 LNF | All | |
| Chevrolet | Impala | 2012-2020 | All | All | 2.5 LCV 2.5 LKW, 3.6 LFX | All | |
| Chevrolet | Malibu | 2015-2024 | All | All | 1.5 LFV, 1.8 LKN, 2.0 LTG, 2.4 LUK, 2.5 LCV, 2.5 LKW | All | |
| Chevrolet | Orlando (Canada only) | 2009-2014 | All | All | 2.4 LEA | All | |
| Chevrolet | Silverado | 2014-2024 | All | All | 2.7 L3B, 4.3 LV1, 4.3 LV3, 5.3 L82, 5.3 L83, 5.3 L84 6.2 L86, 6.2 L87 | All | |
| Chevrolet | Suburban | 2015-2024 | All | All | 5.3 L83, 5.3L L84, 6.2 L86, 6.2L L87 | All | |
| Chevrolet | Tahoe | 2015-2024 | All | All | 5.3 L83, 5.3 L84, 6.2 L86, 6.2L L87 | All | |
| Chevrolet | Traverse | 2009-2024 | All | All | 2.0 LTG, 2.5 LK0, 3.6 LFY 3.6 LLT | All | |
| Chevrolet | Trax | 2016-2019 | All | All | 1.2 LIH, 1.4 LE2 | All | |
| GMC | Acadia | 2009-2019 | All | All | 2.5 LCV, 2.5 LK0, 3.6 LGX, 3.6 LLT | All | |
| GMC | Canyon | 2015-2024 | All | All | 2.5 LCV, 2.7 L2R, 2.7 L3B, 3.6 LFX 3.6 LGZ | All | |
| GMC | Savana | 2018-2024 | All | All | 4.3 LV1, 6.6 L8T | All | |
| GMC | Sierra | 2014-2024 | All | All | 2.7 L3B, 4.3 LV1, 4.3 LV3, 5.3 L82, 5.3 L83, 5.3 L84, 6.2 L86 6.2 L87 | All | |
| GMC | Terrain | 2010-2019 | All | All | 1.5 LYX, 2.0 LTG, 2.4 LAF, 2.4 LEA, 3.0 LFW, 3.6 LFX | All | |
| GMC | Yukon | 2015-2024 | All | All | 5.3 L83, 5.3 L84, 6.2 L86, 6.2 L87 | All | |
| Saturn | Outlook | 2009-2010 | All | All | 3.6 LLT | All | |
| Saturn | Sky | 2007-2010 | All | All | 2.0 LNF | All | |
| Pontiac | Solstice | 2007-2010 | All | All | 2.0 LNF | All | |
| Involved Region or Country | North America |
| Condition | After hooking up the Active Fuel Injector Tester (AFIT) to the vehicle's ECM connectors, the engine may begin to turn over, then exhibit a no crank condition afterwards. It may also be found on vehicles equipped with automatic transmission that there is no communication with the transmission control module. |
| Cause | This issue can occur when the AFIT SIDI testing cables (cables for testing direct injected fuel injectors) are plugged directly into the AFIT MCU (Main Control Unit) with the MCU powered up. On vehicles equipped with an automatic transmission this can cause internal damage to the Transmission Control Module preventing the engine from cranking and the TCM/TEHCM from communicating. |
CORRECTION
The Transmission Control Module will require replacement to remedy the no crank no start condition (automatic transmission).
The AFIT SIDI (Spark Ignition Direct Injection) testing cables were intended to plug into the DMU (Drive & Measurement Unit) not the MCU (Main Control Unit).
GM dealers were sent an update kit to prevent the MCU's power supply from being connected if SIDI testing cables were connected directly to the MCU.
This kit contains guards/adapters that are permanently attached to the end of the SIDI testing cables with adhesive (see below).
The Kit provided to dealers to install on SIDI cables:
The adapter/guard properly installed on the end of the SIDI cable:
With adapter/guard properly installed it will cover the power plug port on the MCU if the SIDI cable is mistakenly plugged into the MCU:
Verify the guards/adapters are installed properly on the cables and have not been modified in anyway, if the guards are not present, install to prevent future damage.
NOTE:
The AFIT tool does provide on screen instructions on cable usage that need to be followed.
Follow the AFIT user guide for proper usage of the tool.
SERVICE INFORMATION
| Version | 3 |
| Modified | 05/17/2018 - Created on 04/24/2019 - update models, model years and engine RPOs 05/10/2024 - Update models, model years and engine RPOs |